Bug 972

Summary:	Reduce ClassLoader Lookup, i.e. Class.forName(..)
Product:	[JogAmp] Jogl	Reporter:	Sven Gothel <sgothel>
Component:	core	Assignee:	Sven Gothel <sgothel>
Status:	RESOLVED FIXED
Severity:	enhancement	CC:	sgothel
Priority:	---
Version:	2
Hardware:	All
OS:	all
Type:	---	SCM Refs:	gluegen dfde2a47bfdc2d1ad75c8e1165e27c767803cc3f jogl c5964bf2e3ebd6e05a7d551b033355c21ca9eea9
Workaround:	---

Description Sven Gothel 2014-02-12 02:09:17 CET

Class.forName(..) may cause a dramatic performance hit in special cases,
i.e. long CLASSPATH or multiple daisy-chained ClassLoader.

Try to cache ClassLoader lookup results or avoid lookup alltogether.

Comment 1 Sven Gothel 2014-02-13 00:59:39 CET

dfde2a47bfdc2d1ad75c8e1165e27c767803cc3f
  Instrument ReflectionUtil's forName(..) usage

c5964bf2e3ebd6e05a7d551b033355c21ca9eea9
    GLProfile, GLContextImpl:
      - ReflectionUtil.DEBUG_STATS_FORNAME: Dump forName stats if set
      - Cache GL*Impl and GL*ProcAddressTable Constructor<?> for GLContextImpl's createInstance(..)
      - Remove off-thread early classloading thread which only adds complications
    
    DisplayImpl:
      - Remove one redundant availability test